using System;
using System.Collections;
using System.Collections.Specialized;
using System.Data;
using System.Data.SqlTypes;
using System.Data.SqlClient;
using System.Text;
using ECommerce.DAL;


namespace Entity
{
	/// <summary>
	/// This object represents the Private Fields of temp_Order_Items.
	/// </summary>
	
	[System.ComponentModel.DataObject]
    public class temp_Order_Items : DatabaseUtility
    {
		#region temp_Order_Items Private Fields


		Int32 _itemsId;
		Int32 _orderId;
		Int32 _productId;
		Int32 _quantity;
		Decimal _price;
		
		#endregion
		#region temp_Order_Items Constractor
		/// <summary>
        /// Creates an empty object of temp_Order_Items. 
        /// This is mainly used to create a new instance of temp_Order_Items to add a new temp_Order_Items.
        /// </summary>
		public temp_Order_Items(){}
		
				
		/// <summary>
        /// Used to retrieve employee information from database, 
        /// which is also used by Update method to save information of an existing temp_Order_Items.
        /// </summary>
		public temp_Order_Items
		(
			Int32 itemsId,
			Int32 orderId,
			Int32 productId,
			Int32 quantity,
			Decimal price
		)
		{
			_itemsId = itemsId;	
			_orderId = orderId;	
			_productId = productId;	
			_quantity = quantity;	
			_price = price;	
		}
		
		#endregion
		#region temp_Order_Items Properties
		
		 /***********************************************************************************************
                                    -- PROPERTIES --        
         Contains all the properties representing the data fields of the current entity.
         ***********************************************************************************************/

        /// <summary>
        /// This is the Primary key value of the ItemsId, which can't be assigned from the application,
        /// to ensure the data consistancy, by not letting the user to change the PK_temp_Items_MultipleShipping to update the data of an another temp_Order_Items instance.
        /// For view or updation purpose, every temp_Order_Items will be retrieved thru the proper 'Get' method.
        /// </summary>
		
		public Int32 ItemsId
		{
			get {return _itemsId;}	
		}
		
				
		public Int32 OrderId
		{
			get {return _orderId;}
			set {_orderId = value;}
		}

		public Int32 ProductId
		{
			get {return _productId;}
			set {_productId = value;}
		}

		public Int32 Quantity
		{
			get {return _quantity;}
			set {_quantity = value;}
		}

		public Decimal Price
		{
			get {return _price;}
			set {_price = value;}
		}
		

		#endregion
		#region temp_Order_Items Static Methods
		/************************************************************************************
                                    -- CREATE METHOD (STATIC) --
        *************************************************************************************/
		/************************* Architecure note:**********************************
        Note 1:
        This method is specially useful for the case, where we need to use Object Data Source controls.
        For ObjectDataSource/SqlDataSource controls, the insert/update metnod requires paramters methods, rather property based methods.
        However, there is still a way to pass property based objects as method parameter for data source controls, 
        but in that case we could not use Sql type, as view controls or asp parameter control can only contain few of primitive type.
        The main reason to remain the Sql Type in our object architecture is it is faster and contains better way for null value support.
        
        Note 2: 
        Non-primary key: it should be primitive type, as the asp paramter control (included in data source control) supports only primitive types.
        /*****************************************************************************/
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Insert, true)]
        public static  Int32 CreateNewtemp_Order_Items
		(
			Int32 orderId,
			Int32 productId,
			Int32 quantity,
			Decimal price
		)
		{
			//creating an empty temp_Order_Items object
            temp_Order_Items temp_Order_Items = new temp_Order_Items();
				temp_Order_Items.OrderId = orderId;
				temp_Order_Items.ProductId = productId;
				temp_Order_Items.Quantity = quantity;
				temp_Order_Items.Price = price;
			
			return temp_Order_Items.CreateNewtemp_Order_Items(temp_Order_Items);
		}
	
		/************************************************************************************
                 -- UPDATE METHODS (STATIC) --
        *************************************************************************************/

        /************************* Architecure note:**********************************
        Note 1:
        This method is specially useful for the case, where we need to use Object Data Source controls.
        For ObjectDataSource/SqlDataSource controls, the insert/update metnod requires paramters methods, rather property based methods.
        However, there is still a way to pass property based objects as method parameter for data source controls, 
        but in that case we could not use Sql type, as view controls or asp parameter control can only contain few of primitive type.
        The main reason to remain the Sql Type in our object architecture is it is faster and contains better way for null value support.
        
        Note 2: 
        There the two types of paramaters will be passed here.
         * a. Primary key paramater: it should be Sql type, as we will bind the primary key property for the view controls (form view, details view etc) as datakey.
         * b. Non-primary key: it should be primitive type, as the asp paramter control (included in data source control) supports only primitive types.
        /*****************************************************************************/
		
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)]
        public static  bool Updatetemp_Order_Items
		(
			Int32 itemsId,
			Int32 orderId,
			Int32 productId,
			Int32 quantity,
			Decimal price
		)
		{
			 temp_Order_Items temp_Order_Items =  temp_Order_Items.Gettemp_Order_ItemsByItemsId(itemsId);
			
				temp_Order_Items.OrderId = orderId;
				temp_Order_Items.ProductId = productId;
				temp_Order_Items.Quantity = quantity;
				temp_Order_Items.Price = price;
			
			return temp_Order_Items.Updatetemp_Order_Items(temp_Order_Items);
		}

		/************************************************************************************
                         -- DELETE METHODS --
        *************************************************************************************/
        /************************* Architecure note:**********************************
        We have used the employeeId parameter as SqlInt32, to bind the delete method with object data source and view control directly.
        ****************************************************************************/
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)]
        public static  bool Deletetemp_Order_Items
		(
			Int32 itemsId
		)
		{
			//Validate Input
			if(itemsId <= GetItemsIdMinValue)
				throw (new ArgumentOutOfRangeException("itemsId"));
				
			// Execute SQL Command
            SqlCommand sqlCmd = new SqlCommand();
			AddParameterToSqlCmd(sqlCmd, "@ReturnValue", SqlDbType.Int, 0, ParameterDirection.ReturnValue, null);
			AddParameterToSqlCmd(sqlCmd, "@ItemsId",SqlDbType.Int, 0, ParameterDirection.Input, itemsId);
			SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_DELETETEMP_ORDER_ITEMS);
			ExecuteScalarCmd(sqlCmd);
			int returnValue = (int)sqlCmd.Parameters["@ReturnValue"].Value;
			return (returnValue == 0 ? false : true);
			
		}
		
		/// <summary>
        /// Deletes a set of employees from the database.
        /// </summary>
		public static bool Deletetemp_Order_ItemsList( System.Collections.Generic.List<Int32>  itemsIdListToDelete)
		{
			//Validate Input
			foreach (Int32 itemsId in itemsIdListToDelete)
			    if(itemsId <= GetItemsIdMinValue)
					throw (new ArgumentOutOfRangeException("itemsId"));
			
			//performing deletion operation //

            string xmlString = FormatXMLForIdArray(itemsIdListToDelete);
			
			// Execute SQL Command
            SqlCommand sqlCmd = new SqlCommand();
			AddParameterToSqlCmd(sqlCmd, "@ReturnValue", SqlDbType.Int, 0, ParameterDirection.ReturnValue, null);
            AddParameterToSqlCmd(sqlCmd, "@ItemsIdList", SqlDbType.Xml, xmlString.ToString().Length, ParameterDirection.Input, xmlString.ToString());
			SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_DELETETEMP_ORDER_ITEMSLIST);
			ExecuteScalarCmd(sqlCmd);
			int returnValue = (int)sqlCmd.Parameters["@ReturnValue"].Value;
			return (returnValue == itemsIdListToDelete.Count ? true : false);
		}
		
		/************************************************************************************
                                 -- GET BY PRIMARY METHODS --
        *************************************************************************************/
        /************************* Architecure note:**********************************
        Retrives an Employee from database, based on it's primary key.
        To view or update an employee, everytime we must have to use this type of 'get' method, 
        since we don't have direct access to the Primary key value for assigning value.
        We have used the employeeId parameter as SqlInt32, to bind the delete method with object data source and view control directly.
        /*****************************************************************************/
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Select, true)]
		public static temp_Order_Items Gettemp_Order_ItemsByItemsId(Int32 itemsId)
		{
			if(itemsId <= GetItemsIdMinValue)
					throw (new ArgumentOutOfRangeException("itemsId"));
				
		 	// Execute SQL Command
			SqlCommand sqlCmd = new SqlCommand();
			AddParameterToSqlCmd(sqlCmd, "@ItemsId",SqlDbType.Int, 0, ParameterDirection.Input, itemsId);
			SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_GETTEMP_ORDER_ITEMSBYITEMSID);
			GenerateCollectionFromReader test = new GenerateCollectionFromReader(Generatetemp_Order_ItemsCollectionFromReader);
            CustomCollection<temp_Order_Items> objCollection = ((CustomCollection<temp_Order_Items>)ExecuteReaderCmd(sqlCmd, test));

            if (objCollection.Count > 0)
                return objCollection[0];
            else
                return null;
		}
		
		/************************************************************************************
                         -- GET BY FOREIGN KEY METHODS --
        *************************************************************************************/
		
		/************************************************************************************
                 -- GET ALL METHODS --
        *************************************************************************************/
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Select, true)]
        public static CustomCollection<temp_Order_Items> GetAlltemp_Order_Items()
		{
		
		 	// Execute SQL Command
            SqlCommand sqlCmd = new SqlCommand();
            SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_GETALLTEMP_ORDER_ITEMS);
            GenerateCollectionFromReader test = new GenerateCollectionFromReader(Generatetemp_Order_ItemsCollectionFromReader);
            CustomCollection<temp_Order_Items> objCollection = ((CustomCollection<temp_Order_Items>)ExecuteReaderCmd(sqlCmd, test));

            return objCollection;
		}
		
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Select, true)]
        public static CustomCollection<temp_Order_Items> GetAlltemp_Order_ItemsPaged(String orderBy, Int32 startRowIndex, Int32 maximumRows)
        {
            //Validate Input
            if (orderBy == "")
                orderBy = "ItemsId";

            // Execute SQL Command
            SqlCommand sqlCmd = new SqlCommand();
            AddParameterToSqlCmd(sqlCmd, "@orderby", SqlDbType.VarChar, 50, ParameterDirection.Input, orderBy);
            AddParameterToSqlCmd(sqlCmd, "@startrow", SqlDbType.Int, 0, ParameterDirection.Input, startRowIndex);
            AddParameterToSqlCmd(sqlCmd, "@pagesize", SqlDbType.Int, 0, ParameterDirection.Input, maximumRows);

            SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_GETALLTEMP_ORDER_ITEMSPAGED);

            GenerateCollectionFromReader test = new GenerateCollectionFromReader(Generatetemp_Order_ItemsCollectionFromReader);
            CustomCollection<temp_Order_Items> objCollection = ((CustomCollection<temp_Order_Items>)ExecuteReaderCmd(sqlCmd, test));
            return objCollection;
        }
		
		[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Select, true)]
        public static int GetAlltemp_Order_ItemsPagedCount(String orderBy, Int32 startRowIndex, Int32 maximumRows)
        {
            // Execute SQL Command
            SqlCommand sqlCmd = new SqlCommand();

            AddParameterToSqlCmd(sqlCmd, "@ReturnValue", SqlDbType.Int, 0, ParameterDirection.ReturnValue, null);
            SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_GETALLTEMP_ORDER_ITEMSPAGEDCOUNT);
            ExecuteScalarCmd(sqlCmd);

            int returnValue = (int)sqlCmd.Parameters["@ReturnValue"].Value;
            return returnValue;
        }
		
		#endregion
		#region Employee Instance Methods
		/************************************************************************************
                                    -- SAVE (INSERT/UPDATE) METHODS (INSTANCE) --
        *************************************************************************************/
		/// <summary>
        /// Saves (inserts and updates) an Employee into database.
        /// The insertion occur if the EmployeeId conatins default value.
        /// Otherwises it updates the Employee into the database, based on the primary key value stored in EmployeeId.
        /// This technique ensures an Employee will not be updated without having a valid EmployeeId.
        /// </summary>
		public bool Save()
		{
			if(ItemsId<= GetItemsIdMinValue)
			{
				Int32 TempId=CreateNewtemp_Order_Items(this);
				if(TempId>0)
				{
					_itemsId=TempId;
					return true;
				}
				else
				{
					// error occurs
					return false;
				}
			}
			else
			{	//This is a update Command
				return (Updatetemp_Order_Items(this));
			}
			
		}
		
		public static Int32 CreateNewtemp_Order_Items(temp_Order_Items newtemp_Order_Items)
		{
			// validate Parameters
			if (newtemp_Order_Items == null)
				throw (new ArgumentNullException("newtemp_Order_Items"));

			// Execute SQL Command
			SqlCommand sqlCmd = new SqlCommand();
			int length = 0;
			AddParameterToSqlCmd(sqlCmd, "@ReturnValue", SqlDbType.Int, 0, ParameterDirection.ReturnValue, null);
            
			AddParameterToSqlCmd(sqlCmd, "@OrderId",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.OrderId);
			AddParameterToSqlCmd(sqlCmd, "@ProductId",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.ProductId);
			AddParameterToSqlCmd(sqlCmd, "@Quantity",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.Quantity);
			AddParameterToSqlCmd(sqlCmd, "@Price",SqlDbType.Decimal, 9, ParameterDirection.Input, newtemp_Order_Items.Price);
			
			SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_CREATENEWTEMP_ORDER_ITEMS);
			ExecuteScalarCmd(sqlCmd);
			return (Int32.Parse(sqlCmd.Parameters["@ReturnValue"].Value.ToString()));

		}
		/// <summary>
        /// Updates an temp_Order_Items instance to the database.
        /// </summary>
		public static bool Updatetemp_Order_Items(temp_Order_Items newtemp_Order_Items)
		{
			// validate Parameters
			if (newtemp_Order_Items == null)
				throw (new ArgumentNullException("newtemp_Order_Items"));

			// Execute SQL Command
			SqlCommand sqlCmd = new SqlCommand();
			int length = 0;
			AddParameterToSqlCmd(sqlCmd, "@ReturnValue", SqlDbType.Int, 0, ParameterDirection.ReturnValue, null);
            
			AddParameterToSqlCmd(sqlCmd, "@ItemsId",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.ItemsId);
			AddParameterToSqlCmd(sqlCmd, "@OrderId",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.OrderId);
			AddParameterToSqlCmd(sqlCmd, "@ProductId",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.ProductId);
			AddParameterToSqlCmd(sqlCmd, "@Quantity",SqlDbType.Int, 0, ParameterDirection.Input, newtemp_Order_Items.Quantity);
			AddParameterToSqlCmd(sqlCmd, "@Price",SqlDbType.Decimal, 9, ParameterDirection.Input, newtemp_Order_Items.Price);
			
			SetCommandType(sqlCmd,CommandType.StoredProcedure,SPR_TEMP_ORDER_ITEMS_UPDATETEMP_ORDER_ITEMS);
            ExecuteScalarCmd(sqlCmd);
			int returnValue = (int)sqlCmd.Parameters["@ReturnValue"].Value;
			return (returnValue == 0 ? false : true);
		}
		#endregion
		
		#region temp_Order_Items Related Collections
		/// <summary>
        /// Creates and returns a strongly typed collection of Employee custom entity. 
        /// The colelction is created through iterating on the IdataReader object which contains Employee information, as a set of records, similar to tabular format.
        /// </summary>
		public static CollectionBase  Generatetemp_Order_ItemsCollectionFromReader(IDataReader returnData) 
		{
			
			//creating the instance of Employee collection
			CustomCollection<temp_Order_Items> coltemp_Order_Items = new CustomCollection<temp_Order_Items>();
			
			/************************* Architecure note:**********************************
             * Below code includes the null value functionality to retieve the data which has nill value in database end.
             * Design consideration:
             * Besides general data fields, special care should be taken for primary keys, to assign '0'/defaultvalue, rather passing 'Null' value in constructor parameter.
             * Although we are considering sqldb tyoe data for the current data container, but while retireving data from database end, through datareader object, we need to cast data reader objects using .net primitive data type, 
             * rather using sqldb type to cast, since data reader objects don't support sql db type to be casted.
             *****************************************************************************/

            //Iterating thriugh the data reader, to generate Employee collection.

			//getting the Employee collection by iterating thru the data reader
			while (returnData.Read()) 
			{
				//passing the temp_Order_Items constructor parameters from the current instance of data reader fields.
				temp_Order_Items newtemp_Order_Items = new temp_Order_Items
				(
					returnData["ItemsId"]== System.DBNull.Value ? GetItemsIdMinValue : (Int32 ) returnData["ItemsId"],
					returnData["OrderId"]== System.DBNull.Value ? 0: (Int32 ) returnData["OrderId"],
					returnData["ProductId"]== System.DBNull.Value ? 0: (Int32 ) returnData["ProductId"],
					returnData["Quantity"]== System.DBNull.Value ? 0: (Int32 ) returnData["Quantity"],
					returnData["Price"]== System.DBNull.Value ? 0: (Decimal ) returnData["Price"]

				);
				//adding the Employee to the collection
				coltemp_Order_Items.Add(newtemp_Order_Items);
			}
			
			//returns the collection of Companys 
			return (coltemp_Order_Items);
		}
		
		#endregion
		#region Constants and Default Values
		
		public static Int32 GetItemsIdMinValue
		{
			get
			{
				return 0;
			}
		}
		
		//create method related contants
			internal const string SPR_TEMP_ORDER_ITEMS_CREATENEWTEMP_ORDER_ITEMS="spr_temp_Order_Items_CreateNewtemp_Order_Items";
			internal const string SPR_TEMP_ORDER_ITEMS_UPDATETEMP_ORDER_ITEMS="spr_temp_Order_Items_Updatetemp_Order_Items";
			internal const string SPR_TEMP_ORDER_ITEMS_DELETETEMP_ORDER_ITEMS="spr_temp_Order_Items_Deletetemp_Order_Items";
			internal const string SPR_TEMP_ORDER_ITEMS_DELETETEMP_ORDER_ITEMSLIST="spr_temp_Order_Items_Deletetemp_Order_ItemsList";
			internal const string SPR_TEMP_ORDER_ITEMS_GETTEMP_ORDER_ITEMSBYITEMSID="spr_temp_Order_Items_Gettemp_Order_ItemsByItemsId";
			internal const string SPR_TEMP_ORDER_ITEMS_GETALLTEMP_ORDER_ITEMS="spr_temp_Order_Items_GetAlltemp_Order_Items";
			internal const string SPR_TEMP_ORDER_ITEMS_GETALLTEMP_ORDER_ITEMSPAGED="spr_temp_Order_Items_GetAlltemp_Order_ItemsPaged";
			internal const string SPR_TEMP_ORDER_ITEMS_GETALLTEMP_ORDER_ITEMSPAGEDCOUNT="spr_temp_Order_Items_GetAlltemp_Order_ItemsPagedCount";
		
		#endregion
	}
}	
